Which of the following feature of thyroid nodule on Ultrasongram is not suggestive of malignancy?

Radiology

Which of the following feature of thyroid nodule on Ultrasongram is not suggestive of malignancy?

All of the following form radiolucent stones except:

The usual radiographic appearance of an osteosarcoma is:

A middle aged female presents with slowly progressive weakness of lower limbs,…